Mine has factory fitted ones they are really small and hardly cover the wheels.
But some have fitted aftermarket ones and this should not be very hard to do.
I have removed the two at the front recently and if I were to fit larger ones the install would be easy as the holes are already to go.
If you look at the inner plastic covers at the front down at the bottom see if they are already open to accept self tapping screws I think that's what mine has.
Its heat to look first then you will know if you are going to have to add your own or just screw them directly to what is pre drilled.